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Geotimes
August 2003
Megan Sever
The Hawaiian hotspot debate: an update Most geologists have long thought that the Hawaiian Islands formed by the Pacific plate moving over a hotspot plume that sat fixed in the mantle; however, recent research suggests a moving hotspot could have been responsible. Still newer research has stirred a new round of debate. mark for My Articles similar articles
Geotimes
April 2005
Sara Pratt
New Dates Defy Fixed Hotspots A new study of two Pacific seamount chains with bends similar to the Hawaii-Emperor chain has found that the bends there formed up to 20 million years apart, challenging the fixed hotspot theory. mark for My Articles similar articles
Geotimes
March 2003
Parks & Pinsker
Geophenomena Conversations between volcanoes ... Bending thoughts about Hawaiian chain mark for My Articles similar articles
Geotimes
September 2006
Carolyn Gramling
Donald Forsyth: At Play in the Field Forsyth emphasizes that collaborating with students and other researchers is not only important to solving tough geological puzzles, but also is much of the fun. mark for My Articles similar articles
Geotimes
June 2007
Hansen & Gramling
Are Volcanoes Picky Eaters? New measurements of the concentrations of elements within magma suggest a volcano's food may be a complex recipe -- and that what kind of magma a volcano prefers may affect its physical features, including the size to which it can grow, according to new research mark for My Articles similar articles
Geotimes
October 2006
Carolyn Gramling
Strong Earthquake Shakes up Hawaii A magnitude-6.7 earthquake rumbled through the island chain of Hawaii, originating near Hawaii island, known as the "Big Island," according to the USGS. An aftershock with a magnitude of 6.0 followed seven minutes later. mark for My Articles similar articles
Chemistry World
July 22, 2011
David Bradley
Cracking diamonds reveals continental origins An analysis of the mineral inclusions in diamonds dredged up by eruptions from deep within the Earth has allowed scientists to get a handle on when the process of plate tectonics began. mark for My Articles similar articles
Geotimes
January 2004
Naomi Lubick
W. Jason Morgan: Geophysics guru honored The recipient of the National Medal of Science, an award for lifetime achievement, is considered by many to be the key architect of plate tectonic mechanics. mark for My Articles similar articles
Geotimes
September 2003
Sara Pratt
Zircons reveal mantle evolution A team of Finnish geologists has discovered 3.1 billion-year-old zircons in the Jormua ophiolite of eastern Finland. Although not the oldest zircons on Earth, the Jormua zircons are the oldest yet found in mantle rocks. Their discovery has given scientists a brief glimpse into the history of early plate tectonics. mark for My Articles similar articles
Geotimes
July 2006
Carolyn Gramling
Earth Soaks up Seawater Geologists have long thought that seawater does not travel very far through Earth's interior A new geochemical study, however, is challenging that notion, saying that traces of seawater exist deep inside the planet. mark for My Articles similar articles
Chemistry World
July 30, 2009
James Urquhart
Water linked to mantle oxidation US scientists have used an emerging technique to analyse minuscule samples of magma derived from the Earth's mantle in different tectonic environments and discovered a direct link between water content and the oxidation state of iron within the sample. mark for My Articles similar articles
Geotimes
July 2006
Carolyn Gramling
Afar From Close-up Powerful stresses in the crust lead to frequent earthquakes and volcanism in the Afar Depression of northeastern Ethiopia. Researchers now say that the source of this activity reveals a possible new connection in Earth's interior. mark for My Articles similar articles
Geotimes
December 2003
Sara Pratt
Ultraslow spreading centers In two of the deepest and most remote parts of the world, scientists have discovered a new class of "ultraslow" spreading ridge, where cold, solid slabs of mantle are being heaved to the surface to build new seafloor. mark for My Articles similar articles
Geotimes
July 2005
Naomi Lubick
Marcia McNutt: Oceangoing Geophysicist Marcia McNutt, president of the Monterey Bay Aquarium Research Institute, has been elected to the National Academy of Sciences for her scientific contributions to geophysics and understanding Earth's crust. mark for My Articles similar articles
Chemistry World
May 28, 2014
Ian Randall
Earth's earliest continent formed like Iceland The Earth's first continents may have formed in a geological setting similar to modern-day Iceland, according to the geochemical analysis of a newly discovered rock unit from Canada. mark for My Articles similar articles
Chemistry World
May 24, 2012
Jon Evans
Can magma crystals predict eruptions? Mineral crystals blasted out from volcanoes can provide a window into the powerful processes going on inside those volcanoes, say UK and German earth scientists. mark for My Articles similar articles
Geotimes
February 2005
Joshua Zaffos
Mid-Ocean Ridge Spread or Jam? Different spreading geologic ridges move at different rates, and new research may explain how changes in spreading rates affect heat distribution and crust development at the ridges, particularly the slow ones. mark for My Articles similar articles
Geotimes
January 2007
Kathryn Hansen
Eruptive Event Caught Red-Handed Researchers know that, in general, mid-ocean ridges are the site of periodic eruptive events that create new seafloor. At the East Pacific Rise, determining the seismic characteristics that lead up to eruptions could help researchers predict when and where along the trench future events are likely to occur. mark for My Articles similar articles
Wired
December 2004
Erika Check
Mysteries of the Deep The top 15 places to explore beneath the sea. mark for My Articles similar articles
Geotimes
November 2006
Kathryn Hansen
Crystals Heat up Volcanic Eruptions Key pressure and temperature information preserved inside tiny bubbles in lava is causing scientists to rethink previous assumptions about how magma behaves, and what might trigger eruptions. mark for My Articles similar articles
Geotimes
November 2005
Naomi Lubick
Large Quake, Small Tsunami for Japan A large earthquake several hundred kilometers offshore Japan triggered a tsunami warning and a subsequent small tsunami. Three or four large events have occurred on this subduction fault over the past several centuries, as the Pacific plate slowly presses westward under Japan. mark for My Articles similar articles
Geotimes
September 2007
Elizabeth Quill
Earth's Heat Buoys up Its Crust New research suggests that without the heat in Earth's crust and upper mantle creating elevation, much of North America would be underwater. mark for My Articles similar articles
BusinessWeek
March 17, 2011
Jonathan Tirone
Searching for Clues Along the Ring of Fire Japan's earthquake will generate aftershocks for years, producing data that may yield insights about the quake-prone Pacific Rim. mark for My Articles similar articles
Geotimes
May 2007
Kathryn Hansen
Deep Earth May Hold an Ocean Earth's deep interior, more than 1,000 kilometers below the surface in the mantle, could prove to be a watery place. That's the conclusion researchers drew from an anomaly uncovered by the first global map of Earth's lower mantle, using a new type of seismic analysis. mark for My Articles similar articles
Geotimes
July 2005
Naomi Lubick
Monitoring the Most Dangerous U.S. Volcanoes An assessment of the risks and hazards associated with volcanoes has led U.S. researchers to suggest a plan of action for avoiding future disasters, including threats to airplanes and populations living around these features. mark for My Articles similar articles
Geotimes
May 2006
Carolyn Gramling
Indonesian Volcano Ready to Erupt Spewing hot clouds of gas and bulging with lava, Mount Merapi, one of Indonesia's most active volcanoes, has rumbled to life, and a full-scale eruption is imminent, local officials warn. mark for My Articles similar articles
Geotimes
July 2004
Sara Pratt
Core Compositions Scientists are working to explain the differences in composition between Earth and Mars. mark for My Articles similar articles
Geotimes
November 2007
Kathryn Watts
Yellowstone and Heise: Supervolcanoes That Lighten Up Beneath Yellowstone, and driving many of its beloved features such as the geyser Old Faithful, lies a churning chamber of magma that has erupted before and may erupt again. mark for My Articles similar articles
Geotimes
May 2004
Megan Sever
Today's Volcano Risks Active volcanoes pose a threat to commercial aircraft, engendering course diversions around potential danger spots. mark for My Articles similar articles
Geotimes
June 2006
Megan Sever
Plate Shifts in the Pacific Northwest The far northern section of the Sumatra-style subduction zone in the Pacific Northwest could be transforming into more of a San Andreas-style seismic zone, according to new research. This geologic reorganization could have implications for the region's earthquake risk. mark for My Articles similar articles
Geotimes
February 2004
Naomi Lubick
Pursuing plumes Geophysicists recently presented improved methods for imaging mantle plumes, providing the strongest evidence yet that some plumes extend all the way down to the coremantle boundary. mark for My Articles similar articles
Geotimes
April 2006
Kathryn Hansen
Deep Sediments, Strong Quakes The surprising strength of the earthquake that triggered the 2004 Sumatran tsunami urged seismologists to discover triggers that lead up to these events. New models show responsibility may rest on sediments than can collect kilometers deep at the junctions of tectonic plates. mark for My Articles similar articles
High on Adventure
April 2008
Vicki Andersen
Creation of the cascade mountains The 700-mile stretch of playground known as the Cascade Mountain range is comprised of more than a dozen major peaks. mark for My Articles similar articles
Geotimes
November 2007
Carolyn Gramling
How Does Your Continent Grow? Data from ancient mantle rocks are helping to shore up the hypothesis that the continental crust was extracted in pulses, during periodic large melting events in the mantle. mark for My Articles similar articles
Chemistry World
August 28, 2015
Andy Extance
'Fire fountain' data illuminate lunar history The most precise measurements yet of carbon present in volcanic glass samples found on the Moon suggest that the 'fire fountain' lava explosions that formed them were propelled by carbon monoxide. mark for My Articles similar articles
Geotimes
September 2007
Nicole Branan
Understanding the Crust Beneath Iran The most recent continent-continent collision on Earth began about 10 to 20 million years ago when the Arabian Plate slammed into Eurasia in what is modern-day Iran. An international team of researchers has brought to light an important piece of this ancient history. mark for My Articles similar articles
Geotimes
July 2007
Carolyn Gramling
X-ray Eyes in the Sky Scientists are working on the next generation of low-orbiting satellites that they hope will see far past the Earth's surface and into its interior, to better understand the structure and composition of Earth's crust, mantle and core. mark for My Articles similar articles
Geotimes
July 2004
Megan Sever
Volcanic Avalanches New research suggests that shallow groundwater systems on volcanoes could explain deep edifice collapses. mark for My Articles similar articles
Chemistry World
May 11, 2006
Jon Evans
Sea Water Assumes the Xenon Mantle Geochemists have uncovered evidence that sea water incorporates noble gases into the Earth's mantle, overturning current theories of how noble gases are transported beneath the crust. mark for My Articles similar articles
Scientific American
March 2005
Madhusree Mukerjee
The Scarred Earth Tsunami-spawning quake leaves geophysical changes. mark for My Articles similar articles
Geotimes
March 2005
Jay Chapman
Hiking Nicaragua's Volcanoes Day trips from the major cities make it possible to see Nicaragua's best geologic features -- its volcanoes -- which are evenly spaced across the countryside. mark for My Articles similar articles
Chemistry World
March 13, 2014
Emma Stoye
Piece of Earth's interior 'ocean' found in diamond A tiny crystal found in a diamond has confirmed predictions about a giant store of water deep in the Earth's mantle. mark for My Articles similar articles
Geotimes
November 2003
Naomi Lubick
Turkish tectonics Researchers recently published preliminary results of the first data collected with modern techniques documenting the tectonic and seismic regimes of eastern Turkey. Their work may overturn conceptions of the tectonic setting of the region. mark for My Articles similar articles
Geotimes
January 2007
Nicole Branan
Heat Flow Causes Magnetic Reversals Earth's magnetic field has done hundreds of somersaults over the last few billion years. A new study sheds some light on what causes the geomagnetic field to flip. mark for My Articles similar articles
Geotimes
November 2007
Nicole Branan
Volcanoes May Have Swallowed Early Earth's Oxygen New research suggests that early Earth did have oxygen during parts of the Archean (between 3.8 billion and 2.5 billion years ago), but volcanoes swallowed it up, thus preventing life from thriving. mark for My Articles similar articles
Geotimes
July 2007
Kathryn Hansen
Mars Had Explosive, Watery Past NASA's Mars rover Spirit hit a grand slam this spring when it rolled across Home Plate, a plateau feature on Mars that revealed clues supporting an explosive past for the planet. mark for My Articles similar articles
Geotimes
November 2007
Toulkeridis et al.
When Volcanoes Threaten, Scientists Warn After multiple false alarms of volcanoes erupting, people may start to doubt the credibility of the alarms and not listen to them. Scientists need to better predict and communicate the dangers arising from living in the shadow of volcanoes. mark for My Articles similar articles
Chemistry World
December 22, 2009
Rajendrani Mukhopadhyay
SlipChip serves up protein crystals A simple microfluidic device requiring no pumps or valves can be used to screen for suitable protein crystallisation conditions, claim US researchers. mark for My Articles similar articles
Geotimes
May 2006
Megan Sever
Yellowstone's Moving Magma New research is suggesting that magma located below the Norris Geyser Basin in Yellowstone National Park periodically rises close to the surface, heating the geothermal field, before diving back down. mark for My Articles similar articles
Geotimes
October 2004
Pratt & Lubick
Mount St. Helens Could Erupt in Days to Months In the next few days to a month, there's a 70 percent chance that a small to moderate eruption event will happen at Mount St. Helens, site of the violent and deadly eruption of May 18, 1980. mark for My Articles similar articles